How to Update Galaxy S II GT-I9100 to UHLPO Android 4.0.4 ICS Firmware

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Posted in: Tips & Tutorials

Samsung Galaxy S2 have received the official stock firmware update (Android 4.0.4 UHLPO) in Panama first, Android 4.0.3 was released and now the latest ICS 4.0.4 is being rolled out slowly to all the countries. Next, we will soon see Android 4.1 Jelly Bean software update. You can easily install Android 4.0.4 UHLPO on Galaxy S2 I9100 using the tutorial given below.

This latest I9100UHLPO was released by Samsung over KIES for Nordic countries. The modem build is UWTLP3 and the firmware build date is 12th July 2012. Since this firmware is unbranded, you can easily install it on an unlocked Samsung Galaxy S II.

As you continue reading below, we will guide you through the entire process of how to install the official software update Android 4.0.4 UHLPO ICS on Galaxy S2 I9100 using ODIN. Please make sure you backup all your apps and personal data as this tutorial will wipe all your data. Let’s continue with the tutorial below.

Galaxy S2

Disclaimer: All the tools, mods or ROMs mentioned below belong to their respective owners/developers. We ( or the developers are not to be held responsible if you damage or brick your device. We don’t have you on gun point to try out this tutorial 😉

Android 4.0.4 UHLPO Firmware Details:

Version: 4.0.4
Date: 2012-07-12
Regions: Panama

Make sure you have installed all your USB drivers for the Samsung Galaxy S II to connect it with the computer. Download Samsung Galaxy S2 USB drivers! Apart from just the USB drivers, there are a few more things that you need to take care of.

1. You need to enable USB debugging mode. This helps to connect your Android phone with the PC. See here: How to Enable USB Debugging.

2. Your phone battery should be 80-85% charged. If your phone goes off suddenly because of battery, during flashing ROMs or installing mods and updates — your phone might go dead permanently. See here: How to Check Battery Percentage.

3. Backup all your important data that you might need as soon as your flash a new ROM, or make a backup for just in case, you never know when anything might go wrong. See below on how to backup data:

Data can also be backed up using Samsung KIES for their devices, but if you backup data manually, you get more options what top choose from and it is very easy to move data across Android devices from different manufacturers, i.e moving Samsung Galaxy Note backup data to HTC One X.

4. Your phone should be factory unlocked. Additional instructions for locked Android devices will be added in the tutorial for unlocking devices.

Now, let’s proceed with the tutorial on the next page and update Galaxy S2 I9100 to Android 4.0.4 UHLPO official stock firmware.